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Proceedings Paper

Solid state direct-drive circuit for pumping gas lasers
Author(s): Koichi Yasuoka; I. Satoh; Akira Ishii; Kaysuya Okamura; Tohru Tamagawa; Iwao Ohshima; T. Gotoh; Kiyoshi Yatsui
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Paper Abstract

A solid-state excitation circuit is demonstrated without any compression circuits. The new circuit contains the dc pre-charging capacitors and pulsed charging capacitors. The applied voltage between the electrode is the sum of the pre-charging voltage and the pulsed charging voltage. Therefore, the switching voltage is lowered when increasing the pre-charging voltage. In TEA-CO2 laser device, the stable discharge is excited by using only one thyristor device. In this circuit, the breakdown voltage is lower and output efficiency is higher than that obtained in the ordinary charge-transfer circuit. The high-repetition rate operation is tested up to 1 kpps. This circuit is also available for the excitation of KrF excimer laser.

Paper Details

Date Published: 1 May 1992
PDF: 9 pages
Proc. SPIE 1628, Intense Laser Beams, (1 May 1992); doi: 10.1117/12.59002
Show Author Affiliations
Koichi Yasuoka, Toshiba Corp. (Japan)
I. Satoh, Nagaoka Univ. of Technology (Japan)
Akira Ishii, Toshiba Corp. (Japan)
Kaysuya Okamura, Toshiba Corp. (Japan)
Tohru Tamagawa, Toshiba Corp. (Japan)
Iwao Ohshima, Toshiba Corp. (Japan)
T. Gotoh, Toshiba Corp. (Japan)
Kiyoshi Yatsui, Nagaoka Univ. of Technology (Japan)


Published in SPIE Proceedings Vol. 1628:
Intense Laser Beams
Richard C. Wade; Peter B. Ulrich, Editor(s)

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